@tig said: Have you got the Units of the exported dwg and then matched them in the Imported geometry - set in the Import 'Options' sub-dialog in SketchUp ? Measure something in the imported geometry using the Tapemeasure tool and see if it's the size you expect... For example, if you have jumbled up m & mm the SKP components might be 1000x or 1/1000 of the mis-sized imported geometry - thus making you think that the components are not adding but they are either so big or so small you can't see them Also check your imported geometry's origin is set NOT to be the CAD origin [again set in Options], otherwise the imported geometry could be located many miles from [0,0,0] and thereby cause graphics glitches etc in SketchUp too... Oh snap. So that's where I went wrong. Thank you so much. I rescaled my door and it automatically rescaled the building too. You were right, the components were too small.